supply and delivery supply and delivery of chemicals , supply and delivery of the following chemicals for assembling field water testing kit at twad board head office water testing laboratory including packing , transportation charges , loading , unloading , stacking charges at twad board , transit insurance charges etc complete . , conc . sulphuric acid ( unit contain 2 . 5 lits ) , ortho phosphoric acid 88 % ( unit contain 2 . 5 lits ) , 2-amino ethanol ( unit contain 2 . 5 lits ) , conc . hydrochloric acid ( unit contain 5 lits ) , hydrogen peroxide solution 30 % w / v ( unit contain 5 lits ) , ph paper booklet ( 20 sheets- 6 . 5 to 9 . 0 range 0 . 5 intervals ) , mercuric iodide red ( unit contain 500gm ) , bromo cresol green sodium salt ( unit contain 5gm ) , potassium iodide ( unit contain 1kg ) , n ( 1- naphthyl ethylene diamine dihydrochloride ) ( unit contain 25gm ) , ammonium molybdate tetra hydrate ( unit contain 500gm ) , ortho tolidine powder ( unit contain 100gm ) , potassium chromate ( unit contain 500gm ) , zirconyl chloride octa hydrate ( unit contain 100gm ) , edta di sodium salt ( unit contain 1kg ) , cadmium coarse powder ( 0 . 3 - 1 . 6mm ) ( unit contain 250gm ) , ammonium thiocyanate ( unit contain 500gm ) , sodium hydroxide pellets ( unit contain 500gm ) , glycerol anhydrous ( unit contain 2 . 5lits ) , calmagite indicator ( unit contain 5gm ) , edta magnesium salt ( unit contain 500gm ) , methyl red sodium salt ( unit contain 25gm ) , stannous chloride dihydrade ( unit contain 100gm ) , sulphanilamide ( unit contain 500gm ) , xylenol orange tetra sodium salt ( unit contain 10gm ) , silver nitrate ( unit contain 500gm )